109k views
4 votes
Line AB contains points A (3, −2) and B (1, 8). The slope of line AB is:

A. −5
B. Negative 1 over 5
C. 1 over 5
D. 5

1 Answer

2 votes

Final answer:

The slope of line AB, using points A (3, −2) and B (1, 8), is calculated as (y2 - y1) / (x2 - x1) which results in -5, indicating it is a straight line with a negative slope.

Step-by-step explanation:

The slope of a line can be determined using any two points on the line by calculating the change in the y-coordinates divided by the change in the x-coordinates. Using points A (3, −2) and B (1, 8), let's calculate the slope (m).

m = (y2 - y1) / (x2 - x1)
= (8 - (-2)) / (1 - 3)
= (8 + 2) / (1 - 3)
= 10 / -2
= -5

So, the slope of line AB is -5, which indicates that it is a straight line with negative slope.

User Evan Huang
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories